Flying squirrels of the Pacific Northwest

Quiet gliders of old-growth forests, known to few but watched by those who walk the woods at dusk.

Report a sighting

Distinct populations

Northern flying squirrel

Glaucomys sabrinus · Cascades & Coast Range

The most widespread of the region’s gliders. Soft grey-brown pelage with a distinctive white belly and large dark eyes. Glides between conifers on nights when the moon is low.

Coastal flying squirrel

Glaucomys sabrinus latipes · Olympic Peninsula & coastal valleys

A slightly larger coastal form with richer cinnamon tones along the back and flanks. Prefers dense stands of Sitka spruce and western hemlock.

Northern flying squirrel gliding between trees at dusk

Where they live

Old-growth stands with high canopy connectivity. They require cavities in large snags for nesting and abundant fungi and lichens for food. The Pacific Northwest’s remaining ancient forests remain their stronghold.

Moss-covered old growth forest interior

Watching the night glide

These squirrels are most active in the hour after sunset and before dawn. Look for them launching from high branches and landing with a soft thud on lower trunks. Binoculars with good low-light performance help.

Send observation to the archive
All records are preserved at the Pacific Northwest Natural History Archive.
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